By area · Release notes. Enrolment by planning area, local authority, school patron, county.

S N SAN TREASA

Roll number: 18647D The Rise, Mount Merrion, Co. Dublin

School details

Address
The Rise, Mount Merrion, Co. Dublin (A94EK75)
Email
[email protected]
Phone
012881505
Principal
Frances Mullin
Ethos
Catholic
DEIS
N
Irish classification
No subjects through Irish
Gaeltacht
N
Island
N
Local authority
Dun Laoghaire Rathdown
School patron
Archbishop of Dublin
School type
Ordinary
School level
All-Through School
Planning area
Booterstown_Blackrock

Preliminary data

The latest year shown (2025/26) is preliminary and subject to revision when the official enrolment figures are released by the Department of Education.

Data highlights

Key numbers to spot outliers or notable changes.

Summary statistics (class-level data)

Min / max / mean enrolment per class across the available years (2020/21–2024/25; preliminary year excluded from class stats).

Class Min Max Mean Years
Junior Infants 54 58 57.0 5
Senior Infants 52 57 55.6 5
1st Class 56 58 56.8 5
2nd Class 53 57 55.4 5
3rd Class 51 54 52.6 5
4th Class 48 54 51.0 5
5th Class 50 55 51.4 5
6th Class 43 52 47.8 5
Total 425 432 428.0 6

Total enrolment over time

Enrolment by gender over time

Enrolment by class over time

Cohort progression

Track how each cohort (pupils who were in the same class in the same year) progresses through the school. Each step shows the count; the number between steps is the net change (pupils gained minus pupils lost).

Cohort 2020/21
JI 2020/21 58
-1
SI 2021/22 57
0
1st 2022/23 57
-1
2nd 2023/24 56
-4
3rd 2024/25 52
Cohort 2021/22
JI 2021/22 57
-2
SI 2022/23 55
+1
1st 2023/24 56
0
2nd 2024/25 56
Cohort 2022/23
JI 2022/23 58
-1
SI 2023/24 57
-1
1st 2024/25 56
Cohort 2023/24
JI 2023/24 54
-2
SI 2024/25 52
Cohort 2024/25
JI 2024/25 58

Raw data by year

Years marked (preliminary) are subject to revision when official data are published.

Year Female Male JI SI 1st 2nd 3rd 4th 5th 6th Total
2020/21 219 213 58 57 58 57 53 48 50 51 432
2021/22 224 204 57 57 57 55 53 54 50 45 428
2022/23 221 204 58 55 57 53 54 53 52 43 425
2023/24 214 214 54 57 56 56 51 51 55 48 428
2024/25 213 212 58 52 56 56 52 49 50 52 425
2025/26 (preliminary) 210 220 430